Çitil Mücahit, İlbasmış Metin, Olanrewaju Victoria Olushola, Barut Abdulkadir, Karaoğlan Sadık, Ali Muhammad
Department of International Trade and Logistics, Siverek Faculty of Applied Sciences, Harran University, Sanliurfa, Turkey.
Department of Business Administration, Faculty of Economics and Administrative Science, Aksaray University, Aksaray, Turkey.
Environ Sci Pollut Res Int. 2023 Apr;30(18):53962-53976. doi: 10.1007/s11356-023-26016-2. Epub 2023 Mar 4.
As the negative repercussions of environmental devastation, such as global warming and climate change, become more apparent, environmental consciousness is growing across the world, forcing nations to take steps to mitigate the damage. Thus, the current study assesses the effect of green investments, institutional quality, and political stability on air quality in the G-20 countries for the period 2004-2020. The stationarity of the variables was examined with the Pesaran (J Appl Econ 22:265-312, 2007) CADF, the long-term relationship between the variables by Westerlund (Oxf Bull Econ Stat 69(6):709-748, 2007), the long-run relationship coefficients with the MMQR method proposed by Machado and Silva (Econ 213(1):145-173, 2019), and the causality relationship between the variables by Dumitrescu and Hurlin (Econ Model 29(4):1450-1460, 2012) panel causality. The study findings revealed that green finance investments, institutional quality and political stability increased the air quality, while total output and energy consumption decreased air quality. The panel causality reveals a unidirectional causality from green finance investments, total output, energy consumption and political stability to air quality, and a bidirectional causality between institutional quality and air quality. According to these findings, it has been found that in the long term, green finance investments, total output, energy consumption, political stability, and institutional quality affect air quality. Based on these results, policies implications were proposed.
随着全球变暖与气候变化等环境破坏的负面影响日益凸显，全球的环境意识正在不断增强，促使各国采取措施减轻损害。因此，本研究评估了2004年至2020年期间绿色投资、制度质量和政治稳定性对二十国集团（G-20）国家空气质量的影响。使用佩萨兰（Pesaran，《应用经济学杂志》22:265 - 312，2007年）的CADF检验变量的平稳性，采用韦斯特伦德（Westerlund，《牛津经济统计学公报》69(6):709 - 748，2007年）检验变量之间的长期关系，运用马查多和席尔瓦（Machado和Silva，《经济学》213(1):145 - 173，2019年）提出的MMQR方法估计长期关系系数，并通过杜米特雷斯库和胡林（Dumitrescu和Hurlin，《经济模型》29(4):1450 - 1460，2012年）的面板因果检验变量之间的因果关系。研究结果表明，绿色金融投资、制度质量和政治稳定性改善了空气质量，而总产出和能源消耗降低了空气质量。面板因果检验揭示了从绿色金融投资、总产出、能源消耗和政治稳定性到空气质量的单向因果关系，以及制度质量与空气质量之间的双向因果关系。根据这些发现，研究发现从长期来看，绿色金融投资、总产出、能源消耗、政治稳定性和制度质量会影响空气质量。基于这些结果，提出了政策建议。
